RESISTORS SOLDERING AND DESOLDERING - Practice Mode

1) Which material is used to make LDR for higher end requirements?

Cadmium sulphide Lead selenide Zinc sulphide Copper sulphide

Correct Answer: Lead selenide

2) Which measuring instrument is used to check the working condition of a photo resistor (LDR)?

Oscilloscope Voltmeter Ohmmeter Ammeter

Correct Answer: Ohmmeter

3) What is the full form of LDR in resistors?

Light Depending Resistor Least Depending Resistor Limited Diode Resistor Limit Depending Resistor

Correct Answer: Light Depending Resistor

4) Which material is used to make photo resistors (LDR)?

Silicon Germanium Aluminium Cadmium sulphide

Correct Answer: Cadmium sulphide

5) What is the main application of photo resistor?

Voltage rectification Demodulation purpose Controls of street lighting systems To generate oscillations

Correct Answer: Controls of street lighting systems

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